There is no agreement between the verbs endings and the gender of the pronoun. When we have a pronoun in the feminine form, like ella, ellas, vosotras, they still have the same ending as él, ellos and vosotros.
The agreement is always between articles, nouns, pronouns and adjectives, for example:
Las chicas son guapas (The girls are pretty)
Los chicos son guapos (The boys are handsome)
Notice how the verb doesn't change (son)
Hope this helps.